Method :1. Put oil in wok and fry cinnamon stick and lemon grass for a minute or so.2. Add in onion, fry until fragrant, then add in your ground chili. The chili should come up to about 2 tablespoon. Add or minus according to your level of spiciness.3. Add in marinated chicken and fry until chicken is slightly brown.4. Add tomatoes, lemon juice, sugar and water.5. Cover and cook over medium flame until chicken is cooked, and sauce has thickened.6. Dish and serve with rice or bread.

Note:* you can substitute juice from 1 lemon with juice from 1 Tbsp of tamarind paste. Just increase water to about 1 cup